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Method for constructing normal piled concrete

A technology of rockfill concrete and construction method, which is applied in the direction of infrastructure engineering, construction, etc., can solve the problems of complicated pre-buried grouting pipe process, etc., and achieve the effect of eliminating the chisel process, reducing the amount of cement, and simplifying the construction process.

Active Publication Date: 2007-11-21
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a common rock-fill concrete construction method based on the patented technology of "Construction Method of Rock-fill Concrete Dam" to further simplify the construction in view of the complicated process of pre-embedded grouting pipes. process, improve construction efficiency

Method used

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  • Method for constructing normal piled concrete
  • Method for constructing normal piled concrete
  • Method for constructing normal piled concrete

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Experimental program
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Embodiment approach

[0023] The present invention is based on the prior art. First, the rock-fill body is formed by natural accumulation of rocks, and then the self-compacting concrete meeting the performance requirements is directly poured from the surface of the rock-fill body. Under the guarantee of safety, rely on its own weight to fill the gaps between the stones. The specific method can be implemented as follows:

[0024] 1) Set formwork or formwork substitute 1 for the warehouse surface where rockfill concrete needs to be poured. The formwork substitute can be a closed structure such as a masonry wall or concrete wall with a certain rigidity and strength. The warehouse surface with natural barriers does not need to be provided with formwork or substitutes; formwork may not be provided for warehouse surfaces that already have barriers, and closed structures such as masonry walls or concrete walls may also be used instead of formwork.

[0025] 2) Use stones or pebbles with a particle size of...

Embodiment 1

[0035] In the specific implementation, the particle size of the used rockfill ranges from 15cm to 150mm. There are both block stones and pebbles in the rockfill. The particle size distribution is uneven, the rockfill can be transported by car, and then the rockfill can be piled up naturally. After natural accumulation, the void rate is about 40%; the thickness of the rockfill layer implemented is up to about 2.5m, usually 1.5m Left and right; about 0.8m thick masonry is used instead of the formwork, and the form removal process is omitted after forming. The self-compacting concrete with a slump of 260mm, an expansion of 600-700mm, and a V-shaped funnel passing time of 5-20s was used for pouring. warehouse, backhoe into the warehouse and other forms. The formed rock-fill concrete was tested by cutting observation, core drilling, and water pressure test, and the following results were obtained: the compactness of the rock-fill concrete is excellent, and the interior is complete...

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Abstract

The invention relates to a construction method to pour the natural moraine by the concrete. The invention transforms the scree or rock block with 15cm particle to the storehouse, then to pour the compact concrete into the moraine from the surface. The invention has the simple construction and improved the efficiency and saved cost. The moraine concrete uses little cement and low water temperature, good volume stability.

Description

technical field [0001] The invention relates to a concrete construction method, in particular to a concrete construction method which can be used to replace various concrete and masonry concrete projects during large-volume concrete construction. Background technique [0002] Mass concrete is a very important part of concrete engineering. In actual engineering, there are often many problems in terms of construction cost, efficiency, and temperature control. Traditional mass concrete construction methods mainly include ordinary concrete, masonry concrete and roller compacted concrete. [0003] The ordinary plain concrete mass concrete construction method is based on block pouring and temperature control measures, and has been widely used in mass concrete construction such as concrete dams, such as the early Hoover concrete gravity arch dam in the United States and the current Three Gorges in China. Concrete gravity dam. This construction method has gained a lot of experienc...

Claims

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Application Information

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IPC IPC(8): E02D15/00E02D15/02
Inventor 金峰安雪晖小原孝之前田又兵卫周虎
Owner TSINGHUA UNIV
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